Carl - take a gander at the third line in my signature block!
Assuming your 350 is a Chevrolet, instead of trying to make a Buick carb with TOTALLY different fuel curve work on your 350; look for the Chevrolet version:
3721s if manual transmission
3720s if automatic transmission
To make the Buick version work well on a Chevy, you need to change:
(A) primary venturi clusters
(B) secondary venturi clusters
(C) primary metering jets
(D) secondary metering jets
(E) step-up rods
(F) step-up rod springs
(G) and unless you like secondary bog, especially the auxiliary air valve
Now take a gander at the second line in my signature block
Maybe you can find a Buick dude that is trying to make a Chevrolet AFB work on his Buick, with horrible results.
Jon.
